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Do not store non-document operation with batches #17679

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8 changes: 6 additions & 2 deletions packages/ckeditor5-engine/src/model/batch.ts
Original file line number Diff line number Diff line change
Expand Up @@ -126,8 +126,12 @@ export default class Batch implements BatchType {
* @returns The added operation.
*/
public addOperation( operation: Operation ): Operation {
operation.batch = this;
this.operations.push( operation );
if ( operation.isDocumentOperation ) {
// Store only document operations in the batch.
// Non-document operations are temporary and should be discarded after they are applied.
operation.batch = this;
this.operations.push( operation );
}

return operation;
}
Expand Down
5 changes: 4 additions & 1 deletion packages/ckeditor5-engine/src/model/operation/operation.ts
Original file line number Diff line number Diff line change
Expand Up @@ -33,6 +33,9 @@ export default abstract class Operation {
/**
* {@link module:engine/model/batch~Batch Batch} to which the operation is added or `null` if the operation is not
* added to any batch yet.
*
* Note, that a {@link ~isDocumentOperation non-document operation} has this property always set to `null`, and is never added
* to any batch.
*/
public batch: Batch | null;

Expand Down Expand Up @@ -111,7 +114,7 @@ export default abstract class Operation {
// Remove reference to the parent `Batch` to avoid circular dependencies.
delete json.batch;

// Only document operations are shared with other clients so it is not necessary to keep this information.
// This can be derived from `baseVersion` so we can remove it.
delete json.isDocumentOperation;

return json;
Expand Down
8 changes: 4 additions & 4 deletions packages/ckeditor5-engine/tests/model/model.js
Original file line number Diff line number Diff line change
Expand Up @@ -1091,10 +1091,10 @@ describe( 'Model', () => {

setData( model, '<paragraph>fo[ob]ar</paragraph>' );

model.change( writer => {
model.getSelectedContent( model.document.selection );
expect( writer.batch.operations ).to.length( 1 );
} );
const version = model.document.version;
model.getSelectedContent( model.document.selection );

expect( model.document.version ).to.equal( version );
} );
} );

Expand Down
Original file line number Diff line number Diff line change
Expand Up @@ -12,18 +12,18 @@ describe( 'DataController utils', () => {
let model, doc;

describe( 'getSelectedContent', () => {
it( 'should use parent batch', () => {
it( 'should not generate any document operations', () => {
model = new Model();
doc = model.document;
doc.createRoot();

model.schema.extend( '$text', { allowIn: '$root' } );
setData( model, 'x[abc]x' );

model.change( writer => {
getSelectedContent( model, doc.selection );
expect( writer.batch.operations ).to.length( 1 );
} );
const version = model.document.version;
getSelectedContent( model, doc.selection );

expect( model.document.version ).to.equal( version );
} );

describe( 'in simple scenarios', () => {
Expand Down
50 changes: 33 additions & 17 deletions packages/ckeditor5-engine/tests/model/writer.js
Original file line number Diff line number Diff line change
Expand Up @@ -206,8 +206,8 @@ describe( 'Writer', () => {
expect( parent.childCount ).to.equal( 0 );
} );

it( 'should create proper operation for inserting element', () => {
const parent = createDocumentFragment();
it( 'should create proper operation for inserting element #1 (document operation)', () => {
const parent = doc.createRoot();
const element = createElement( 'child' );

const spy = sinon.spy( model, 'applyOperation' );
Expand All @@ -222,8 +222,24 @@ describe( 'Writer', () => {
expect( spy.lastCall.args[ 0 ].batch ).to.equal( batch );
} );

it( 'should create proper operation for inserting text', () => {
it( 'should create proper operation for inserting element #2 (non-document operation)', () => {
const parent = createDocumentFragment();
const element = createElement( 'child' );

const spy = sinon.spy( model, 'applyOperation' );

insert( element, parent );

sinon.assert.calledOnce( spy );

expect( spy.lastCall.args[ 0 ].type ).to.equal( 'insert' );
expect( spy.lastCall.args[ 0 ] ).to.instanceof( InsertOperation );
expect( spy.lastCall.args[ 0 ].shouldReceiveAttributes ).to.be.false;
expect( spy.lastCall.args[ 0 ].batch ).to.be.null;
} );

it( 'should create proper operation for inserting text', () => {
const parent = doc.createRoot();
const text = createText( 'child' );

const spy = sinon.spy( model, 'applyOperation' );
Expand Down Expand Up @@ -303,7 +319,7 @@ describe( 'Writer', () => {
// Verify operations.
sinon.assert.calledOnce( spy );
expect( spy.firstCall.args[ 0 ].type ).to.equal( 'move' );
expect( spy.firstCall.args[ 0 ].batch ).to.equal( batch );
expect( spy.firstCall.args[ 0 ].batch ).to.be.null;
} );

it( 'should move element from one parent to the other within different document (docFragA -> docFragB)', () => {
Expand All @@ -324,9 +340,9 @@ describe( 'Writer', () => {
// Verify operations.
sinon.assert.calledTwice( spy );
expect( spy.firstCall.args[ 0 ].type ).to.equal( 'detach' );
expect( spy.firstCall.args[ 0 ].batch ).to.equal( batch );
expect( spy.firstCall.args[ 0 ].batch ).to.be.null;
expect( spy.secondCall.args[ 0 ].type ).to.equal( 'insert' );
expect( spy.secondCall.args[ 0 ].batch ).to.equal( batch );
expect( spy.secondCall.args[ 0 ].batch ).to.be.null;
} );

it( 'should throw when moving element from document to document fragment', () => {
Expand Down Expand Up @@ -515,7 +531,7 @@ describe( 'Writer', () => {
} );

it( 'should create proper operation', () => {
const parent = createDocumentFragment();
const parent = doc.createRoot();
const spy = sinon.spy( model, 'applyOperation' );

insertText( 'foo', parent );
Expand Down Expand Up @@ -637,7 +653,7 @@ describe( 'Writer', () => {
} );

it( 'should create proper operation', () => {
const parent = createDocumentFragment();
const parent = doc.createRoot();
const spy = sinon.spy( model, 'applyOperation' );

insertElement( 'foo', parent );
Expand Down Expand Up @@ -672,7 +688,7 @@ describe( 'Writer', () => {
} );

it( 'should create proper operation', () => {
const parent = createDocumentFragment();
const parent = doc.createRoot();
const text = createText( 'foo' );
const spy = sinon.spy( model, 'applyOperation' );

Expand Down Expand Up @@ -750,7 +766,7 @@ describe( 'Writer', () => {
// Verify operations.
sinon.assert.calledOnce( spy );
expect( spy.firstCall.args[ 0 ].type ).to.equal( 'move' );
expect( spy.firstCall.args[ 0 ].batch ).to.equal( batch );
expect( spy.firstCall.args[ 0 ].batch ).to.be.null;
} );

it( 'should move element from one parent to the other within different document fragments (docFragA -> docFragB)', () => {
Expand All @@ -771,9 +787,9 @@ describe( 'Writer', () => {
// Verify operations.
sinon.assert.calledTwice( spy );
expect( spy.firstCall.args[ 0 ].type ).to.equal( 'detach' );
expect( spy.firstCall.args[ 0 ].batch ).to.equal( batch );
expect( spy.firstCall.args[ 0 ].batch ).to.be.null;
expect( spy.secondCall.args[ 0 ].type ).to.equal( 'insert' );
expect( spy.secondCall.args[ 0 ].batch ).to.equal( batch );
expect( spy.secondCall.args[ 0 ].batch ).to.be.null;
} );

it( 'should throw when moving element from document to document fragment', () => {
Expand Down Expand Up @@ -823,7 +839,7 @@ describe( 'Writer', () => {
} );

it( 'should create proper operations', () => {
const parent = createDocumentFragment();
const parent = doc.createRoot();
const spy = sinon.spy( model, 'applyOperation' );

appendText( 'foo', parent );
Expand Down Expand Up @@ -877,7 +893,7 @@ describe( 'Writer', () => {
} );

it( 'should create proper operation', () => {
const parent = createDocumentFragment();
const parent = doc.createRoot();
const spy = sinon.spy( model, 'applyOperation' );

appendElement( 'foo', parent );
Expand Down Expand Up @@ -1840,14 +1856,14 @@ describe( 'Writer', () => {
batch = new Batch();
remove( range );

expect( batch.operations.length ).to.equal( 2 );
expect( batch.operations.length ).to.equal( 0 );
} );

it( 'should use DetachOperation', () => {
batch = new Batch();
sinon.spy( model, 'applyOperation' );
remove( div );

expect( batch.operations[ 0 ].type ).to.equal( 'detach' );
expect( model.applyOperation.firstCall.args[ 0 ].type ).to.equal( 'detach' );
} );

it( 'should throw when trying to use detached writer', () => {
Expand Down
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